Value theory

Value theory, also called axiology, studies the nature, sources, and types of values. It is a branch of philosophy and an interdisciplinary field closely associated with social sciences such as economics, sociology, anthropology, and psychology.

Value is the worth of something, usually understood as covering both positive and negative degrees corresponding to the terms good and bad. Values influence many human endeavors related to emotion, decision-making, and action. Value theorists distinguish various types of values, like the contrast between intrinsic and instrumental value. An entity has intrinsic value if it is good in itself, independent of external factors. An entity has instrumental value if it is useful as a means leading to other good things. Other classifications focus on the type of benefit, including economic, moral, political, aesthetic, and religious values. Further categorizations distinguish absolute values from values that are relative to something else.

Diverse schools of thought debate the nature and origins of values. Value realists state that values exist as objective features of reality. Anti-realists reject this, with some seeing values as subjective human creations and others viewing value statements as meaningless. Regarding the sources of value, hedonists argue that only pleasure has intrinsic value, whereas desire theorists discuss desires as the ultimate source of value. Perfectionism, another approach, emphasizes the cultivation of characteristic human abilities. Value pluralism identifies diverse sources of intrinsic value, raising the issue of whether values belonging to different types are comparable. Value theorists employ various methods of inquiry, ranging from reliance on intuitions and thought experiments to the analysis of language, description of first-person experience, observation of behavior, and surveys.

Value theory is related to various fields. Ethics focuses primarily on normative concepts of right behavior, whereas value theory explores evaluative concepts about what is good. In economics, theories of value are frameworks to assess and explain the economic value of commodities. Sociology and anthropology examine values as aspects of societies and cultures, reflecting dominant preferences and beliefs. In psychology, values are typically understood as abstract motivational goals that shape an individual's personality. The roots of value theory lie in antiquity as reflections on the highest good that humans should pursue. Diverse traditions contributed to this area of thought during the medieval and early modern periods, but it was only established as a distinct discipline in the late 19th and early 20th centuries.

Value theory, also known as axiology and theory of values, is the systematic study of values. As a branch of philosophy, it examines which things are good and what it means for something to be good. It distinguishes different types of values and explores how they can be measured and compared. This field also studies whether values are a fundamental aspect of reality and how they influence phenomena such as emotion, desire, decision, and action. Value theory is relevant to many human endeavors because values are guiding principles that underlie the political, economic, scientific, and personal spheres. It analyzes and evaluates phenomena such as well-being, utility, beauty, human life, knowledge, wisdom, freedom, love, and justice.

The precise definition of value theory is debated and some theorists rely on alternative characterizations. In a broad sense, value theory is a catch-all label that encompasses all philosophical disciplines studying evaluative and normative topics. According to this view, value theory is one of the main branches of philosophy and includes ethics, aesthetics, social philosophy, political philosophy, and philosophy of religion. A similar broad characterization sees value theory as a multidisciplinary area of inquiry that integrates research from fields like sociology, anthropology, psychology, and economics alongside philosophy. In a narrow sense, value theory is a subdiscipline of ethics that is particularly relevant to the school of consequentialism since it determines how to assess the value of consequences.

The word axiology has its origin in the ancient Greek terms ἄξιος (axios, meaning 'worthy' or 'of value') and λόγος (logos, meaning 'study' or 'theory of'). Even though the roots of value theory reach back to the ancient period, this area of thought was only conceived as a distinct discipline in the late 19th and early 20th centuries, when the term axiology was coined. The terms value theory and axiology are usually used as synonyms, but some philosophers distinguish between them. According to one characterization, axiology is a subfield of value theory that limits itself to theories about which things are valuable and how valuable they are. The term timology is an older and less common synonym.

Value is the worth, usefulness, or merit of something. Value theorists examine the expressions used to describe and compare values, called evaluative terms. They are further interested in the types or categories of values. The proposed classifications overlap and are based on factors like the source, beneficiary, and function of the value.